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Finding the Fourth Proportional to 641,940.80, 962,546.70 and 242,594.60

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Solution

The fourth proportional to 641,940.80, 962,546.70 and 242,594.60 is: 363,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,940.80 : 962,546.70 = 242,594.60 : x
  2. Step 2: Convert to fraction form
    641,940.80/962,546.70 = 242,594.60/x
  3. Step 3: Cross multiply
    641,940.80x = 962,546.70 × 242,594.60
  4. Step 4: Simplify right side
    641,940.80x = 233,508,631,667.82
  5. Step 5: Solve for x
    x = 233,508,631,667.82/641,940.80
  6. Step 6: Final answer
    x = 363,754.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.